import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
//1.引入element-plus组件库
import ElementPlus, {ElMessage} from 'element-plus'
import 'element-plus/dist/index.css'
//3.引入element-plus图标库
import * as ElementPlusIconsVue from '@element-plus/icons-vue'
//5.1修改elementPlus默认中文
import zhCn from 'element-plus/dist/locale/zh-cn.mjs'
import axios from "axios";

const app = createApp(App)
//4.遍历ElementPlusIconsVue对象中的所有图标组件并注册到app中
for (const [key, component] of Object.entries(ElementPlusIconsVue)) {
    app.component(key, component)
}

//2.app.use(ElementPlus) 使用Element-plus组件库
//5.2 app.use(ElementPlus,{ locale: zhCn })将El本地化为中文
app.use(ElementPlus,{ locale: zhCn }).use(store).use(router).mount('#app')

//6.解决ResizeObserver Error
const debounce = (fn, delay) => {
    let timer = null;
    return function () {
        let context = this;
        let args = arguments;
        clearTimeout(timer);
        timer = setTimeout(function () {
            fn.apply(context, args);
        }, delay);
    }
}
const _ResizeObserver = window.ResizeObserver;
window.ResizeObserver = class ResizeObserver extends _ResizeObserver {
    constructor(callback) {
        callback = debounce(callback, 16);
        super(callback);
    }
}

//7.定义全局方法获取登录的用户信息
window.getUser=()=>{
    return localStorage.user ? JSON.parse(localStorage.user) : null;
}

//8.设置路由守卫
//to即将要访问的目标from即将离开的目标 next路由守卫执行的函数
router.beforeEach((to,from,next)=>{
    let user=localStorage.user;//从localStorage中获取用户数据
    if(to.path!=='/login'&&!user){
        //跳转到登录页，切弹出提示
        next({path:'/login'},ElMessage.error('请先登录'));
    }else{
        next()//如果目标路径是登录页，或者用户已登录，就直接放行，允许路由跳转
    }
})

//9.1配置根路径
const BASE_URL='http://localhost:8080'
window.BASE_URL=BASE_URL;
//9.2给app(vue)也设置根路径，这样可以再任意template标签中使用
//const app=createApp(App);
app.config.globalProperties.BASE_URL=BASE_URL;


//10.创建根据字典code查询字典下所有的字典项的全局方法
window.loadDictOption=(object,dictCode)=>{
    axios.get(BASE_URL+'/v1/dictoption/select/'+dictCode)
        .then((response)=>{
            if(response.data.code==2000){
                object.value=response.data.data;
            }else {
                ElMessage.error(response.data.msg)
            }
        })
}
//创建方法用来对类型替换
window.valueToLabelFormat=( array,cellValue)=>{
    if(!array.value){
        return cellValue;
    }
    for(let item of array.value){
        if(item.value == cellValue){
            cellValue = item.label;
            return cellValue;
        }
    }
}